I know nothing about Ice Speed Skates or Roller Speed Skates, but when I was watching the Olympic Indoor Short Track racing, their skates seemed pretty high off the skating surface. i.e. the bottom of the ice skating boot to the ice skating surface Is this different than a typical indoor roller skating speed skate/short track?

The bottom of short track ice boots are a few inches off the ice (deck height). For Inline short track boots, it is even higher. 80mm wheels is 3.15", 90mm is 3.54", 100mm is 3.94", 110mm is 4.33", and 125mm is a whopping 4.92". Add the thickness of the inline frame, and the minimum deck height is 3.2".

Not too many use 80mm wheels anymore, usually just tiny tot competitors (4-6 years of age).

Short track ice skates have a blade that is mounted at an angle to help them keep from slipping. The long track skates are what is known as "clap skates" that detach from the heel at the end of a stroke to keep them on the ice and give the skater a longer stride and thus more speed. The specifics of the skates I don't know.

Short track blades are set to the left of foot center (both right and left skates) to help avoid 'booting out' during extreme leans at turn apex. Booting out is when you lean over so far that the side of the boot contacts the ice and generates enough leverage to push the blade off the ice. Having a taller blade "could" mean less offset required.

for what it's worth... I could mount my blades to the right and not notice!

It appears there is a difference between short track and long track ice speed skates and the Roller Speed skates seem to have the larger Deck Height to bottom of boot measurement. Thanks for the information.

I have another question. On a roller skating short track, will a quad or will a inline roller skate promote faster lap times?

I have another question. On a roller skating short track, will a quad or will a inline roller skate promote faster lap times?

For most people, depending on how good the technique used is, inlines will most surely have the faster lap times. There is less rolling resistance
(due to the contact patch of the wheels) and inline wheels are larger in diameter, allowing for more speed once your have brought them up to speed.